FILE -In this Monday, June 11, 2018 file photo, the multi-rotor electric aircraft Volocopter 2x, displayed at the electronic fair Cebit in Hannover, Germany. The operator of Frankfurt’s international airport is working on a concept for future autonomous air taxi services in cooperation with the Volocopter GmbH.
FILE -In this Monday, June 11, 2018 file photo, the multi-rotor electric aircraft Volocopter 2x, displayed at the electronic fair Cebit in Hannover, Germany. The operator of Frankfurt’s international airport is working on a concept for future autonomous air taxi services in cooperation with the Volocopter GmbH. dpa via AP Julian Stratenschulte
FILE -In this Monday, June 11, 2018 file photo, the multi-rotor electric aircraft Volocopter 2x, displayed at the electronic fair Cebit in Hannover, Germany. The operator of Frankfurt’s international airport is working on a concept for future autonomous air taxi services in cooperation with the Volocopter GmbH. dpa via AP Julian Stratenschulte